Sujet: elevation liste de sujets
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34 articles trouvés pour ce sujet.

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	Angles of elevation and depression		2015-03-08
		Timmy pose la question : Joel is walking down a street and sees a 115 ft tall building in front of him. He stops 190 feet from the base of the building at the tip of the building's shadow. Round answers to three decimal places. A. If there was a piece of rope from the top of the building to Joel, how long would it be? B. What is the angle of elevation from Joel to the top of the building? C. Margaret says that she could find the angle of depression from the top of the building to Joel by subtracting the angle of elevation from 90°. Is she correct? Explain. Penny Nom lui répond.
	The height of a building		2015-01-20
		Emily pose la question : A man 2m high observes the angle of elevation to the top of the building to be 70 degrees. And the angle of depression to the bottom of the building to be 19 degrees. How tall is the building? Robert Dawson lui répond.
	A ladder against a wall		2014-07-09
		thabo pose la question : A ladder 6.5m long,leans against a wall so that the top of the ladder is 4.8m from the ground.what is the angle of elevation of the ladder to the top of the wall Penny Nom lui répond.
	The angle of elevation of the sun		2013-07-03
		Maurice pose la question : A vertical pole with a length of 7m cast a shadow with a length of 5m. Calculate the angle of elevation of the sun and include a diagram. Penny Nom lui répond.
	The angles of elevation and depression		2012-12-03
		Chelsey pose la question : a person on a balcony of one building looks towards a second building. if the angle of elevation to the top of the second building is 25 degrees, the angle of depression to the bottom of the second building is 17 degrees, and the balcony of the first building is 22 feet above the ground, what is the height of the second building? Penny Nom lui répond.
	The height of a building		2012-09-08
		Lin pose la question : How do surveyors determine a height of a building 150 feet away with an observation angle at 40 degrees? What is the elevation of that top floor? Penny Nom lui répond.
	The angular elevation of the sun		2012-07-14
		VINEET pose la question : WHAT IS ANGULAR ELEVATION OF THE SUM Penny Nom lui répond.
	What is the height of the building?		2011-02-05
		Myra pose la question : The angle of elevation is 45 degrees. The distance from George's foot to the top of the building is 50m. What is the height of the building? Penny Nom lui répond.
	Angle of elevation		2010-12-10
		PANKAJ pose la question : angle of elevation of the sun perpendicular72 and base 88 find angle Penny Nom lui répond.
	A building and a flag pole		2010-09-09
		paul pose la question : A flag pole and a building stand on the same horizontal level. From the point p at the bottom of the building,the angle of elevation of the top t of the flag pole is 65 degrees. From the top q of the building the angle of elevation of the point t is 25 degrees.If the building is20 meters high. Calculate the distance pt Penny Nom lui répond.
	80,000 yards of dirt		2010-08-12
		Jeremy pose la question : If I have an area 50' x 1200', what would be the elevation with 80,000 yards of dirt on it. Robert Dawson lui répond.
	The height of a flag shaft		2010-04-25
		Sarah pose la question : A man standing 20metres away from a tower observes the angles of elevation to the top and bottom of a flag shaft standing on the tower as 62degrees and 60degrees respectively. Calculate the height of the flag shaft.' Penny Nom lui répond.
	How far apart are the two girls?		2010-01-18
		benny pose la question : Debby and john are looking up at their house from the backyard. From Debby's point of view, the top of the house is at an angle of elevation of 40 degrees From Johns point of view, directly closer to the house, it is 60 degrees. The house is 15m high. How far apart are the two girls? Robert Dawson lui répond.
	A vertical radio tower is located on the top of a hill		2009-04-21
		Rafael pose la question : A vertical radio tower is located on the top of a hill that has an angle of elevation of 10 degrees. A 70-foot guy wire is attached to the tower 45 feet above the hill. a. Make a drawing to illustrate the situation b. What angle does the guy wire make with the side of the hill? c. How far from the base of the tower is the guy wire anchored to the hill? What confuses me about this problem is the visual situation. Isn't the angle of the guy wire with the side of the hill the same as the angle of elevation? And if not, then how is one supposed to find the other angles without any more information? Harley Weston lui répond.
	Confusion in a multiple choice question		2008-11-14
		BJ pose la question : My son got this math problem which he could mostly solve. Here it is: The highest location in a certain country is 4525 m above sea level. The lowest point in the same country is 192 m below sea level. a) Find the difference of the two elevations. His answer: a-(-b)= a+b or 4525-(-192)= 4525+192=4717 m. No problem. b) A city is 2221 m above sea level. Is this elevation closer to the highest point or the lowest point? His answer: highest point because: 4525-2221= 2304 m (closest to the highest point) and 2221-(-192)=2221+192= 2413 m. (farthest to the lowest point). OK so far. But then he was given 4 choices for this question with no other information: a) 4717 m; lowest b) 4333 m; lowest c) 4333 m; highest d) 4717 m; highest What does it mean? What's the connection with the rest of the problem? Harley Weston lui répond.
	How tall is the wall?		2008-09-29
		ash pose la question : you and bob are separated by a tall wall you stand 10 feet further from the wall than bob your angle of elevation is 37 degrees and his 44 degrees how tall is the wall? Penny Nom lui répond.
	Angle of elevation		2008-09-09
		kristy pose la question : A man on the tenth floor of a building shouts down to a person on the street. If the angle of elevation from the street to the man in the building is 35° and the man in the building is 40 feet up, about how far away from the building is the person on the street? Penny Nom lui répond.
	The height of a tree		2008-09-09
		danice pose la question : At a certain time of day, the angle of elevation of the sun is 30°. A tree has a shadow that is 25 feet long. Find the height of the tree to the nearest foot. Penny Nom lui répond.
	Angle of Elevation		2008-01-29
		Rita pose la question : Uluru or Ayers Rock is a sacred place for Aborigines of the western desert of Australia. Chun-Wei uses a surveying device to measure the angle of elevation to the top of the rock to be 11.5 degrees. He walks half a mile closer and measures the angle of elevation to be 23.9 degrees. How high is Ayers Rock in feet? Stephen La Rocque lui répond.
	The elevation of the sun		2007-09-10
		Elena pose la question : The "angle of elevation" of an object about you is the angle between a horizontal line of sight between you and the object. (See figure) After the sun rises, its angle of elevation increases rapidly at first, then more slowly, reaching a maximum near noontime. Then the angle decreases until sunset. The next day the phenomenon repeats itself. Assume that when the sun is up, its angle of elevation (E) varies sinusoidally with the time of day. Let t be the number of hours that has elapsed since midnight last night. Assume that the amplitude of this sinsoid is 60 degrees, and the maximum angle of elevation occurs at 12:45 p.m.. Assume that at this time of year the sinusoidal axis is at E=-5 degrees. The period is, of course, 24 hours. a. Sketch a graph of this function b. What is the real-world significance of the t - intercepts? c. What is the real world significance of the portion of the sinusoid, which is below the t-axis? d. Predict the angle of elevation at 9:27 a.m., and at 2:30 p.m. e. Predict the time of sunrise f. As you know, the maximum angle of elevation increases and decreases with the change of the seasons. Also, the times of sunrise and sunset change with the seasons. What one change could you make to your mathematical model that would allow you to use it for predicting the angle of elevation of the sun at time on any day of the year. Harley Weston lui répond.
	The height of a pole		2007-08-02
		lalaine pose la question : Hi, this is my problem.. From a point 50.2 m to the pole, a student measured the angle of elevation to the top of the pole to be 32°. Find the height of the pole if the student's height from his feet to his eyes is about 4 ft. Penny Nom lui répond.
	Angle of inclination from the horizontal		2007-07-18
		Joyce pose la question : In flying upward for 1260 yards along a straight inclined path airplane rises 156 yards. Find the climbing angle ( the angle of inclination from the horizontal) Thank you in advance Stephen La Rocque lui répond.
	Height of a tower from two observations		2007-07-16
		joyce pose la question : An observer wishes to determine the height of a tower. He takes sight @ the top of the tower from A & B w/c are 5oft. apart @ the elevation on a direct line w/ the tower. The vertical angle @ point A is 30 degrees & the point B is 40 degrees. What is the height of the tower? Find the value of x in angle tangent 40 degrees and 30 degrees? Show the solution of the value of x? Stephen La Rocque lui répond.
	Height of an antenna (angle of elevation)		2007-07-16
		Fhay pose la question : An antenna stands on the edge of the top of a 52 story building from a point 320 ft. from the base of the building, the angle of elevation to the top of the antenna is 64 degrees in each story is 12 ft. high. Find the height of the antenna Stephen La Rocque lui répond.
	The two towers (angles of elevation trigonometry)		2007-07-14
		joyce pose la question : The angle of elevation of tower B from the top of tower A is 28 degrees and the angle of elevation of the top of tower A from the base is 46 degrees Find the height of tower A if tower B is 120 m high? Stephen La Rocque lui répond.
	Angles of depression		2007-06-13
		Phonda pose la question : The pilot of a small private plane can look forward and see the control tower for a small airstrip. Beyond that is a large factory that is 3 milies from the airstrip. The angles of depression are 12.5 degrees and 4.8 degrees respectively. Find the airplane's altitude, to the nearest ten feet. Stephen La Rocque lui répond.
	Angle of elevation		2007-03-13
		Joslyn pose la question : A ship at sea sights a 12m high lighthouse on a cliff which is 80m above sea level. If the angle of elevation to the top of the lighthouse is 27 degrees, calculate the distance from the ship to the shore. Haley Ess lui répond.
	Angle of elevation		2007-02-05
		Zee pose la question : A 55 ft. flagpole casts a 25 ft. shadow. Calculate the angle of elevation to the sun to the nearest degree. Stephen La Rocque lui répond.
	Percent elevation gain		2007-01-24
		Susan pose la question : okay... so if I hike Gregory Canyon and it's a 1.1 mile hike with a 900 foot elevation gain, what's the percent elevation gain? Stephen La Rocque lui répond.
	The waterway between Lake Huron and Lake Superior		2006-03-21
		Trenae pose la question : the waterway between lake huron and lake superior separates the u.s and canada.it is usually 13 feet above the water when its closed and each section is 210 feet long if the angle of elevation is 70 degrees then what is the distance from the top of the drawbridge to the water and the width of the gap created by the 2 sections of the bridge Penny Nom lui répond.
	Two word problems		2005-11-14
		Jennifer pose la question : 1. Every other person on a school's parent advisory committee is surveyed to determine how many people support passage of a school bond to build a new elementary school. Is this a good sample? Why or why not? 2.What is the difference in elevation between the highest point in California,Mount Whitney,which towers 4421 meters above sea level, the lowest point in California,Death Valley, which lies 86 meters below sea level? Harley Weston lui répond.
	The elevation of the top of the house		2005-11-13
		Chloe pose la question : Karen is standing 23 metres away from the base of a 23 metre high house. Assume that Karen's eyes are 1.5 metres above ground. Find the elevation of the top of the house from Karen's eye line. Penny Nom lui répond.
	Angles of elevation and depression		2004-05-18
		Anjum pose la question : what is the difference between an angle of elevation and angle of depression? Penny Nom lui répond.
	The angle of elevation		2001-03-08
		Jeffrey pose la question : At a Certain time, a vertical pole 3m tall cast a 4m shadow. What is the angle of elevation of the sun? Harley Weston lui répond.

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